<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
<form action="/login" method="post">
    用户名 <input type="text" name="username"><br>
    密码 <input type= "password" name="password">
    <input type="submit" value="提交">
</form>

</body>
</html>